The MSW Votec 221 is a single engine, single seat kitbuilt light-sport aircraft, designed and built in Switzerland.
MSW Votec 221
The Lycoming IO-390 engine is a horizontally opposed, four-cylinder aircraft engine, manufactured by Lycoming Engines.
Lycoming IO-390
Van's Aircraft RV-8s have been fitted with the IO-390 engine
The Mooney M20J can have an IO-390-A3A6 installed under an STC
Aura Aero Integral R